Agronomy Talk

HERBICIDE INSIGHTS: Corn System Study: One Pass vs. Two Passes

Published on Wednesday, September 8, 2021

Can farmers get away with making a single herbicide application on their corn crop, or should they utilize a two-pass herbicide application across the field? Ben Wiegmann, Beck’s Hybrids Field Sales Agronomist, discusses one-pass herbicide programs versus two-pass herbicide programs on corn. Watch this video to learn how to make a one-pass system work and what specific chemistries help make weed control effective on the corn crop. Nine different herbicide treatments were tested in this study: two treatments in a one-pass system, and seven treatments in a two-pass system.

Treatments

One-Pass System

  1. 80 oz. Acuron® (Site of Action (SOA) Groups 5 + 15 + 27 + 27)
  2. 5.6 oz. Corvus® (SOA Groups 2 + 5 + 27) + Atrazine

Two-Pass System

  1. 40 oz. Acuron® followed by (fb) 40 oz. Acuron® + Roundup PowerMAX®
  2. 51.2 oz. Bicep II Magnum® (SOA Groups 5 + 15) + Atrazine fb Roundup PowerMAX® + Atrazine
  3. 51.2 oz. Bicep II Magnum® + Atrazine fb Roundup PowerMAX® + Laudis® + Atrazine
  4. 96.0 oz. Lexar® EZ (SOA Groups 5, 15, 27) fb RoundUp PowerMax + Atrazine
  5. 13.0 oz. Verdict® (SOA Groups 14 + 15 + 5) fb Roundup PowerMAX® + Atrazine
  6. 13.0 oz. Verdict® fb Roundup PowerMAX® + Laudis® + Atrazine
  7. 3.5 oz. Corvus® + Atrazine fb Capreno® + Atrazine + Roundup PowerMAX®

 

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Author: Ben Wiegmann

Categories: Agronomy, Agronomy Talk

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